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Table 3 Factors associated with household income

From: The effect of high medical expenses on household income in South Korea: a longitudinal study using propensity score matching

    Unit: USD
Variables Estimate§ Std. Error p-value
Householder level  
Sex    
  Man 0   
  Woman −553 86.2 0.4914
Age    
  Under 39 0   
  40 ~ 64 329 101.2 0.7285
  Over 65 −3,887 101.2 0.0037
Education level    
  Below elementary school 0   
  Middle school 2,081 93.7 0.0175
  High school 5,202 85.4 <.0001
  above university 11,689 101.7 <.0001
Marriage status    
  Married 0   
  Unmarried −7,928 153 <.0001
  Divorce, Separated −1,605 77.7 0.0271
Household level  
Employment of household    
  None 0   
  >1 person 4,908 43.3 <.0001
Senior of household    
  None 0   
  >1 person −2,061 99.2 0.0261
Member with chronic disease    
  None 0   
  1 person −225 32.1 0.5691
  ≥2 people −1,107 56.8 0.0351
Year (reference: 2007)    
  2008 1,408 65.6 0.0216
  2009 1,723 101.7 0.0698
  2010 197 76.8 0.7836
  2011 103 80.4 0.8914
Case (reference: non-occurrence household)    
  Occurrence household −1,784 95.7 0.0458
Interaction term (year x Case)    
  2008 −1,737 75.7 0.0142
  2009 −2,357 117.3 0.0317
  2010 −1,426 86.4 0.0840
  2011 −663 92.4 0.4422
  1. § Adjusted odds ratio from multiple regression analysis with all of the variables in Table 1